"* Conversions: Replace the remove header/footer options with a more geenric search replace option, that allows you to not only remove but also replace text* Conversion: The preprocess html option has now become a new ‘Heuristic Processing’ option which allows you to control exactly which heuristics are used* Conversion: Various improvements to Heuristic Processing (used to be preprocess HTML)* When adding empty books to calibre, optionally set the author to the author of the currently selected book"